Question

The following table displays all Test 2 scores from Dr. Klman's two STA 2023 pourses. Scores that are boldlaced were achieved by females whereas scores that were achieved by males are underlined. Use these data to answer questions 1 through 7 7691 82 90 84 91 84 91 100 64 73 73874 62 62 84 47 101918778 87 33 33 93 87 87 73 62 84 64 60 7 6 91 22 29 29 51 64 99 52 21 What is the probability that a randomly selected student scored an A/B on the test. given the student is female? What is the probability that a randomly selected student is male and scored a C/D on the test? Which of the following pairs of events are mutually exclusive? Male and Female CD and Female Male and A/B Male and C/D C/D and F OF and Male OAB and CD OFemale and A/B Female and F F and AB

Its right here

sorry about that ?

Answer 1

The conditional probability of event A given information about event B already happened is given by P(A/B) = P(A and B) / P(B)

The events A and B are said to be mutually exclusive if P(A and B)=0.

probability that a randomly selected student scone an A/B on the test given the student is female = P(A/B / female) - 32 = [0.64) 50 formula & P(A/B) = P(A and B) PCB) P ( male and scored c/o on the feet) - 10046845 The events are neetually exclusive when both events cannot oeur together he may dance kene any commen re P (ANB)=0 ] from the given paus, I male and female ] [ clo and f] Als and clo) If and A/B are neutually exclusive because those paurs cannot happen simultaneously. where as for the remaining options, the events are not ruutually exclusive because these pauss can paus together.